20238067780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1\times {\mathrm{6971}}^1$

素因数の和:7309

約数の個数: 96

約数和(自身を含む): 49334987520

約数和(自身を除く): 29096919740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 233, 356, 445, 466, 623, 890, 932, 1165, 1246, 1631, 1780, 2330, 2492, 3115, 3262, 4660, 6230, 6524, 6971, 8155, 12460, 13942, 16310, 20737, 27884, 32620, 34855, 41474, 48797, 69710, 82948, 97594, 103685, 139420, 145159, 195188, 207370, 243985, 290318, 414740, 487970, 580636, 620419, 725795, 975940, 1240838, 1451590, 1624243, 2481676, 2903180, 3102095, 3248486, 4342933, 6204190, 6496972, 8121215, 8685866, 11369701, 12408380, 16242430, 17371732, 21714665, 22739402, 32484860, 43429330, 45478804, 56848505, 86858660, 113697010, 144557627, 227394020, 289115254, 578230508, 722788135, 1011903389, 1445576270, 2023806778, 2891152540, 4047613556, 5059516945, 10119033890, 20238067780]

約数ペア:

[(1, 20238067780), (2, 10119033890), (4, 5059516945), (5, 4047613556), (7, 2891152540), (10, 2023806778), (14, 1445576270), (20, 1011903389), (28, 722788135), (35, 578230508), (70, 289115254), (89, 227394020), (140, 144557627), (178, 113697010), (233, 86858660), (356, 56848505), (445, 45478804), (466, 43429330), (623, 32484860), (890, 22739402), (932, 21714665), (1165, 17371732), (1246, 16242430), (1631, 12408380), (1780, 11369701), (2330, 8685866), (2492, 8121215), (3115, 6496972), (3262, 6204190), (4660, 4342933), (6230, 3248486), (6524, 3102095), (6971, 2903180), (8155, 2481676), (12460, 1624243), (13942, 1451590), (16310, 1240838), (20737, 975940), (27884, 725795), (32620, 620419), (34855, 580636), (41474, 487970), (48797, 414740), (69710, 290318), (82948, 243985), (97594, 207370), (103685, 195188), (139420, 145159)]